{
 "description": "A lofted down tube (rounded-rectangle sections, widest 82 mm) joined to a 46 mm \u00d7 73 mm bottom-bracket cylinder: the display mesh of the tube's side face gained a flat triangle across the inside of its bend.",
 "commands": [
  {
   "command": "sketch.create",
   "params": {
    "plane": {
     "origin": [
      -4,
      0.0,
      2
     ],
     "x_dir": [
      0.0,
      1.0,
      0.0
     ],
     "y_dir": [
      -0.164,
      0.0,
      0.986
     ]
    },
    "name": "S4b"
   }
  },
  {
   "command": "sketch.rectangle.rounded",
   "params": {
    "p0": [
     -19.0,
     -18.0
    ],
    "p1": [
     19.0,
     18.0
    ],
    "radius": 10.799999999999999
   }
  },
  {
   "command": "sketch.finish",
   "params": {}
  },
  {
   "command": "sketch.create",
   "params": {
    "plane": {
     "origin": [
      80,
      0.0,
      16
     ],
     "x_dir": [
      0.0,
      1.0,
      0.0
     ],
     "y_dir": [
      -0.205,
      0.0,
      0.979
     ]
    },
    "name": "S5b"
   }
  },
  {
   "command": "sketch.rectangle.rounded",
   "params": {
    "p0": [
     -41.0,
     -33.0
    ],
    "p1": [
     41.0,
     33.0
    ],
    "radius": 19.8
   }
  },
  {
   "command": "sketch.finish",
   "params": {}
  },
  {
   "command": "sketch.create",
   "params": {
    "plane": {
     "origin": [
      175,
      0.0,
      40
     ],
     "x_dir": [
      0.0,
      1.0,
      0.0
     ],
     "y_dir": [
      -0.596,
      0.0,
      0.803
     ]
    },
    "name": "S6b"
   }
  },
  {
   "command": "sketch.rectangle.rounded",
   "params": {
    "p0": [
     -41.0,
     -35.0
    ],
    "p1": [
     41.0,
     35.0
    ],
    "radius": 21.0
   }
  },
  {
   "command": "sketch.finish",
   "params": {}
  },
  {
   "command": "sketch.create",
   "params": {
    "plane": {
     "origin": [
      314.248,
      0.0,
      271.657
     ],
     "x_dir": [
      0.0,
      1.0,
      0.0
     ],
     "y_dir": [
      -0.857,
      0.0,
      0.515
     ]
    },
    "name": "S7b"
   }
  },
  {
   "command": "sketch.rectangle.rounded",
   "params": {
    "p0": [
     -39.0,
     -35.0
    ],
    "p1": [
     39.0,
     35.0
    ],
    "radius": 21.0
   }
  },
  {
   "command": "sketch.finish",
   "params": {}
  },
  {
   "command": "sketch.create",
   "params": {
    "plane": {
     "origin": [
      422.553,
      0.0,
      451.835
     ],
     "x_dir": [
      0.0,
      1.0,
      0.0
     ],
     "y_dir": [
      -0.857,
      0.0,
      0.515
     ]
    },
    "name": "S8b"
   }
  },
  {
   "command": "sketch.rectangle.rounded",
   "params": {
    "p0": [
     -35.0,
     -32.0
    ],
    "p1": [
     35.0,
     32.0
    ],
    "radius": 19.2
   }
  },
  {
   "command": "sketch.finish",
   "params": {}
  },
  {
   "command": "sketch.create",
   "params": {
    "plane": {
     "origin": [
      484.441,
      0.0,
      554.793
     ],
     "x_dir": [
      0.0,
      1.0,
      0.0
     ],
     "y_dir": [
      -0.857,
      0.0,
      0.515
     ]
    },
    "name": "S9b"
   }
  },
  {
   "command": "sketch.rectangle.rounded",
   "params": {
    "p0": [
     -23.0,
     -22.0
    ],
    "p1": [
     23.0,
     22.0
    ],
    "radius": 13.2
   }
  },
  {
   "command": "sketch.finish",
   "params": {}
  },
  {
   "command": "solid.loft",
   "params": {
    "sections": [
     {
      "sketch": "S4b"
     },
     {
      "sketch": "S5b"
     },
     {
      "sketch": "S6b"
     },
     {
      "sketch": "S7b"
     },
     {
      "sketch": "S8b"
     },
     {
      "sketch": "S9b"
     }
    ],
    "operation": "new",
    "name": "DT2",
    "body_name": "DT2"
   }
  },
  {
   "command": "solid.cylinder",
   "params": {
    "diameter": 46,
    "height": 73.0,
    "base": [
     0,
     -36.5,
     0
    ],
    "axis": "Y",
    "operation": "new",
    "name": "BBShell",
    "body_name": "BBShell"
   }
  },
  {
   "command": "solid.combine",
   "params": {
    "target": "DT2",
    "tools": [
     "BBShell"
    ],
    "operation": "join"
   }
  }
 ]
}